//========================================================================
// FILENAME : util.h
// CREATED : 07-03-2009
// AUTHOR : Jesper Aagaard Vuholm
// DESCR. : Header file for util.
//
//------------------------------------------------------------------------
//
// REV. DATE/AUTHOR CHANGE DESCRIPTION
// 1.00 07-03-2009/Jesper function ***create_checksum*** added.
// 1.01 21-04-2009/Jesper function ***is_a_number*** added.
// 1.02 09-05-2009/Jesper function ***BEEP*** added.
//========================================================================
#include <avr/io.h>

#include "Delay.h"

// public functions
unsigned int create_checksum( char data_arr[] );
unsigned char is_a_number(char x);
void BEEP(unsigned int beepLenght);
